EP3002004A1 - Composition de soin pour la peau a application topique - Google Patents

Composition de soin pour la peau a application topique Download PDF

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Publication number
EP3002004A1
EP3002004A1 EP15189356.7A EP15189356A EP3002004A1 EP 3002004 A1 EP3002004 A1 EP 3002004A1 EP 15189356 A EP15189356 A EP 15189356A EP 3002004 A1 EP3002004 A1 EP 3002004A1
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EP
European Patent Office
Prior art keywords
mixture
weight
aqueous
cooling
hydroquinone
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP15189356.7A
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German (de)
English (en)
Inventor
Nancy Puglia
Rosario Ramirez
Jerry Roth
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Galderma SA
Original Assignee
Galderma SA
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Publication date
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Publication of EP3002004A1 publication Critical patent/EP3002004A1/fr
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/04—Dispersions; Emulsions
    • A61K8/06—Emulsions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/045—Hydroxy compounds, e.g. alcohols; Salts thereof, e.g. alcoholates
    • A61K31/05—Phenols
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/185—Acids; Anhydrides, halides or salts thereof, e.g. sulfur acids, imidic, hydrazonic or hydroximic acids
    • A61K31/19—Carboxylic acids, e.g. valproic acid
    • A61K31/20—Carboxylic acids, e.g. valproic acid having a carboxyl group bound to a chain of seven or more carbon atoms, e.g. stearic, palmitic, arachidic acids
    • A61K31/203—Retinoic acids ; Salts thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/56—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
    • A61K31/58—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids containing heterocyclic rings, e.g. danazol, stanozolol, pancuronium or digitogenin
    • A—HUMAN NECESSITIES
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    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/23—Sulfur; Selenium; Tellurium; Compounds thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
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    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/34—Alcohols
    • A61K8/342—Alcohols having more than seven atoms in an unbroken chain
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/34—Alcohols
    • A61K8/345—Alcohols containing more than one hydroxy group
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
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    • A61K8/34—Alcohols
    • A61K8/347—Phenols
    • A—HUMAN NECESSITIES
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    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/36—Carboxylic acids; Salts or anhydrides thereof
    • A61K8/361—Carboxylic acids having more than seven carbon atoms in an unbroken chain; Salts or anhydrides thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/36—Carboxylic acids; Salts or anhydrides thereof
    • A61K8/365—Hydroxycarboxylic acids; Ketocarboxylic acids
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/37—Esters of carboxylic acids
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
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    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/37—Esters of carboxylic acids
    • A61K8/375—Esters of carboxylic acids the alcohol moiety containing more than one hydroxy group
    • A—HUMAN NECESSITIES
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    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/60—Sugars; Derivatives thereof
    • A61K8/602—Glycosides, e.g. rutin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
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    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/63—Steroids; Derivatives thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
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    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/67—Vitamins
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/67—Vitamins
    • A61K8/671—Vitamin A; Derivatives thereof, e.g. ester of vitamin A acid, ester of retinol, retinol, retinal
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/69—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing fluorine
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
    • A61K8/86—Polyethers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/0012—Galenical forms characterised by the site of application
    • A61K9/0014—Skin, i.e. galenical aspects of topical compositions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/06—Ointments; Bases therefor; Other semi-solid forms, e.g. creams, sticks, gels
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
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    • A61K9/10—Dispersions; Emulsions
    • A61K9/107—Emulsions ; Emulsion preconcentrates; Micelles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P17/00—Drugs for dermatological disorders
    • A—HUMAN NECESSITIES
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    • A61P17/00—Drugs for dermatological disorders
    • A61P17/16—Emollients or protectives, e.g. against radiation
    • A—HUMAN NECESSITIES
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    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin
    • A61Q19/02—Preparations for care of the skin for chemically bleaching or whitening the skin
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    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/59—Mixtures
    • A61K2800/592—Mixtures of compounds complementing their respective functions

Definitions

  • the invention relates generally to a method of making a medicated skin treating composition.
  • Melasma or chloasma is a common pigmentary condition that affects primarily women in their reproductive years. Dark, mottled (hyperpigmented) patches appear on the face and neck, especially on the cheeks and forehead. Melasma is usually triggered by hormonal activity that is the result of pregnancy or birth control pills. Thus, the condition is known as the "mask of pregnancy.” The condition occurs when excess melanin is deposited in the cells of the epidermis and dermis. Melasma can persist for long periods of time and often recurs with subsequent pregnancies. The condition is less common among men, who account for about 10% of all cases.
  • Standard therapy involves depigmenting, or bleaching, the affected areas of the skin, the use of sunscreens, and avoidance of sunlight.
  • Hydroquinone is the most popular topical depigmenting agent. Concentrations of 5%-10% hydroquinone are very effective, but can be irritating. The chemical stability of hydroquinone formulations is important because hydroquinone is easily oxidized and loses potency. The most commonly used agent usually involves a 16-week to 20-week course of therapy, and some therapies can take longer.
  • Tretinoin Retin-A is another widely used therapy for melasma.
  • U.S. Pat. No. 5,538,737 discloses a method of making a water-in-oil emulsion containing a pharmaceutically acceptable salt of an H 2 -antagonist.
  • the steps include dissolving the pharmaceutically acceptable salt in an aqueous medium to form a water portion; combining the water portion with an oil portion, comprising an edible oil comprising an ester or mixed ester of glycerol and an emulsifying agent to form a water portion and oil portion matrix; then emulsifying the matrix to form the water-in-oil emulsion.
  • U.S. Pat. No. 5,656,672 discloses a process for preparing a water-in-oil emulsion with retinal as the active ingredient.
  • the emulsion contains an oil phase including at least one organic solvent for retinal (such as aliphatic fatty alcohols) and optional lipophilic additives; an aqueous phase containing water and optional hydrophilic additives; and an agent for emulsifying the aqueous phase in the oil phase.
  • the oil phase and the aqueous phase are independently prepared, and the aqueous phase is incorporated into the oil phase, with subsequent addition of a phase-containing retinol and its solvent.
  • U.S. Pat. No. 5,660,837 discloses a process for the preparation of a pharmaceutical formulation in the form of an oil-in-water emulsion.
  • the steps of the process include of adding the emulsion-stabilizing surface active drug and an optimal conventional surfactant to a two-phase, oil-water system at room temperature; allowing the emulsion-stabilizing surface active drug to equilibrate at an interface; adding an agent giving isotonicity to the final formulation; and homogenizing by high pressure technique.
  • U.S. Pat. No. 5,976,555 discloses skin care compositions.
  • An oil-in-water emulsion base contains retinoids; cetearyl alcohol and cetearyl glucoside or a mixture of a polyethylene glycol ethers of stearyl alcohol; cetyl alcohol, stearyl alcohol and mixtures thereof; a light, dry absorbable oil; and substantive, emollient oils or waxes.
  • U.S. Pat. No. 6,080,393 discloses a skin care composition comprising an oil-in-water emulsion with a therapeutically effective amount of a retinoid; wherein the oil phase comprising one or more oils, and an effective amount of at least one oil-soluble antioxidant; and wherein the composition comprises a corticosteroid.
  • the invention provides a cream base for the topical application of skin care therapeutics and a process for making the cream base.
  • the process for making the cream base entails (a) mixing the hydrophilic compounds with water to form an aqueous phase; (b) mixing the hydrophobic compounds to form a hydrophobic (non-aqueous or wax) phase; then (c) mixing the hydrophilic and hydrophobic phases with one another to form a biphasic mixture; and finally (d) adding an emulsifier to the biphasic mixture to form the emulsion.
  • the emulsifier is added as the final step, less wax is needed in making the cream, resulting in a "thinner" hydrophilic cream that disappears faster when applied to the skin, as compared to creams made by processes where the emulsifier is added to the aqueous or non-aqueous phases earlier in the process.
  • the cream base made by the method of interest can be a carrier for any of a variety of pharmaceutically active agents for dermatologic use.
  • pharmaceutically active agents for dermatologic use.
  • anti-acne, anti-cancer, antibiotic, anti-inflammatory, hormone, anti-fungal and analgesic active agents can be incorporated into a cream base of interest.
  • a cream base of interest comprises a steroid.
  • a cream base of interest comprises a keratolytic agent.
  • a cream base of interest comprises a depigmenting agent.
  • a cream base of interest comprises two or more of a steroid, keratolytic agent and depigmenting agent.
  • a steroid is fluocinolone, such as fluocinolone acetonide, of a keratolytic agent is tretinoin and of a depigmenting agent is hydroquinone.
  • the invention also provides a cream, which includes the inactive ingredients butylated hydroxytoluene, cetyl alcohol, citric acid, glycerin, glyceryl stearate, magnesium aluminum silicate, methyl gluceth-10, methylparaben, PEG-100 stearate, propylparaben, purified water, sodium metabisulfite, stearic acid and stearyl alcohol.
  • a cream which includes the inactive ingredients butylated hydroxytoluene, cetyl alcohol, citric acid, glycerin, glyceryl stearate, magnesium aluminum silicate, methyl gluceth-10, methylparaben, PEG-100 stearate, propylparaben, purified water, sodium metabisulfite, stearic acid and stearyl alcohol.
  • the cream is a carrier that contains as an active ingredient, fluocinolone acetonide, hydroquinone, tretinoin and combinations thereof.
  • the cream can be Tri-Luma ® Cream, which is the first approved product to combine the standard depigmenting agent, hydroquinone, with tretinoin and a topical low-potency steroid that can be applied as a single preparation.
  • the recommended course of therapy for Tri-Luma ® Cream is 8 weeks, and significant results have been seen after the first 4 weeks of treatment.
  • Another advantage of the process of the invention is that by controlling the temperature at which the components, including hydroquinone, are added, the cream does not turn as brown, resulting in a more pleasing-colored product.
  • Creams are emulsions of hydrophilic and lipophilic (hydrophobic) components.
  • an emulsifier or surface active agent is included to enhance the mixing of the reagents resulting in a stable emulsion.
  • inert carrier The various compounds that comprise an inert carrier are generally known in the art.
  • inert is meant not having a pharmacologic activity.
  • Typical examples of inert compounds comprising a cream base include cetyl alcohol, lanolin, glycerin, ethanol, EDTA, methyl paraben, zinc oxide, titanium dioxide, benzoic acid, carboxymethylcellulose, dimethylsulfoxide, polyethyleneglycol, petroleum, citric acid and stearic acid.
  • the instant invention relates to a method of making a cream base as a vehicle for one or more pharmacologically active agents for dermatologic applications.
  • the method of interest comprises a particular order of adding and mixing of the ingredients of a cream.
  • the hydrophilic ingredients, including water, are mixed. Heating may be used to facilitate dissolving and solubility to produce a solution.
  • the lipophilic or hydrophobic ingredients are mixed separately. Heating may be used to facilitate mixing and homogenization.
  • hydrophilic solution and the lipophilic solution then are mixed and blended.
  • One or more pharmaceutically active agents then are added to the blended mixture.
  • one or more emulsifiers are added and the entire mixture blended to produce a dermatologic cream of interest.
  • the temperatures for heating the hydrophobic and hydrophilic solutions is that sufficient to facilitate the obtention of a homogeneous solution. Generally, a lower elevated temperature with longer mixing time is preferred. The temperature also may be limited by the properties of any one of the individual ingredients therein. Generally, the temperature does not exceed about 100°C. Preferably, the temperature does not exceed about 90°C or about 80°C or about 70°C or about 60°C. Generally, the temperature of heating need not be exact, at least within the accuracy of standard temperature measurement means.
  • the hydrophobic and hydrophilic solutions need not be heated to the same temperature. Having the same temperature facilitates the mixing of the two solutions. If the solutions are at different temperatures, the warmer solution is cooled to the temperature of the cooler solution prior to mixing.
  • the blended mixture optionally may be cooled prior to mixing in the one or more pharmacologically active agent or agents.
  • the physical properties of the active agents may dictate a need for cooling.
  • one or more emulsifiers are added.
  • the mixture is blended thoroughly to produce a cream of interest. If elevated, the temperature can be reduced during the blending.
  • oils may be derived from animals, plants, nuts, petroleum etc. Those derived from animals, plant seeds and nuts are similar to fats and consequently, may contain a significant number of polar acid and/or ester groups. Alternatively, oils derived from petroleum are usually aliphatic or aromatic hydrocarbons that are essentially free of polar substitution.
  • Oil-based products which can be used include hydrocarbons or mineral fats obtained by the distillation of petroleum (petroleum jelly); vegetable oils and liquid triglycerides; animal fats or solid, natural triglycerides; and waxes or solid ethers of fatty acids, such as stearic acid and palmitic acid, and organic alcohols.
  • mineral fats obtained by the distillation of petroleum (petroleum jelly); vegetable oils and liquid triglycerides; animal fats or solid, natural triglycerides; and waxes or solid ethers of fatty acids, such as stearic acid and palmitic acid, and organic alcohols.
  • Lanolin or wool fats made of fatty acids and cholesterol esters; and cetyl and stearyl alcohols, which are solid alcohols obtained by hydrogenation of their respective acids are also useable.
  • Amphoteric compounds such as soaps or salts of fatty acids that may be acidic or basic depending on whether the lipophilic group is anionic or cationic, sulfated alcohols which are semi-synthetic substances and synthetic surface active agents are known in the art and also can be used.
  • Glycerin is obtained from fats and, due to the hydrophobicity thereof, has the property of extracting water from the surface of mucosa or denuded skin. Glycerin does not damage intact skin because of having hydrophilic properties, and is a useful humectant.
  • liquid alcohols liquid glycols, liquid polyalkylene glycols, liquid esters, liquid amides, liquid protein hydrosylates, liquid alkylated protein hydrosylates, liquid lanolin and lanolin derivatives and other like materials.
  • Particular examples include monohydric and polyhydric alcohols, e.g., ethanol, isopropanol, glycerol, sorbitol, 2-methoxyethanol, diethylene glycol, ethylene glycol, hexylene glycol, mannitol, cetyl alcohol and propylene glycol; ethers such as diethyl or dipropyl ether; polyethylene glycols and methoxypolyoxyethylenes; carbowaxes having molecular weights ranging from 200 to 20,000; polyoxyethylene glycerols; polyoxyethylene; sorbitols; and stearoyl diacetin.
  • monohydric and polyhydric alcohols e.g., ethanol, isopropanol, glycerol, sorbitol, 2-methoxyethanol, diethylene glycol, ethylene glycol, hexylene glycol, mannitol, cetyl alcohol and propylene glycol
  • ethers such as diethyl
  • the topical carriers often include both an alcohol and water so as to accommodate lipophilic and hydrophilic components.
  • Other ingredients include buffers, such as sodium hydroxide, sodium citrate or tetrasodium EDTA; excipients; fragrances such as menthol; opacifiers such as zinc oxide, magnesium aluminum silicate and titanium dioxide; preservatives such as dichlorobenzyl alcohol, benzoic acid, methylparaben and phenyl carbinol; antioxidants; gelling agents such as petrolatum and mineral wax; thickening agents such as carboxymethylcellulose; stabilizers; surfactants; emollients; coloring agents and the like.
  • buffers such as sodium hydroxide, sodium citrate or tetrasodium EDTA
  • excipients such as menthol
  • opacifiers such as zinc oxide, magnesium aluminum silicate and titanium dioxide
  • preservatives such as dichlorobenzyl alcohol, benzoic acid, methylparaben and phenyl carbin
  • the topical carrier may include a penetration enhancer defined as a material that increases the permeability of the skin to one or more active agents so as to allow for cutaneous delivery of a pharmacologically active agent.
  • a penetration enhancer defined as a material that increases the permeability of the skin to one or more active agents so as to allow for cutaneous delivery of a pharmacologically active agent.
  • Various compounds for enhancing the permeability of skin are known in the art. For example, dimethylsulfoxide (DMSO), dimethyl formamide (DMF) and N,N-dimethylacetamide (DMA), decylmethylsulfoxide, polyethylene glycol monolaurate and the 1-substituted azacycloheptan-2-ones.
  • a number of different emulsifiers or surfactants can be used to prepare a topical preparation of interest.
  • Nonlimiting examples of amphoteric surfactants useful in the compositions of the present invention are disclosed in McCutcheon's, "Detergents and Emulsifiers", North American edition (1986 ) and McCutcheon's, “Functional Materials", North American edition (1992 ); both of which are incorporated by reference herein in their entirety.
  • Surfactants that can used are the betaines, sultaines and hydroxysultaines.
  • betaines include the higher alkyl betaines, such as coco dimethyl carboxymethyl betaine, lauryl dimethyl carboxymethyl betaine, lauryl dimethyl alphacarboxyethyl betaine, cetyl dimethyl carboxymethyl betaine, cetyl dimethyl betaine, lauryl bis-(2-hydroxyethyl) carboxymethyl betaine, steryl bis-(2-hydroxypropyl) carboxymethyl betaine, oleyl dimethyl gamma-carboxypropyl betaine, lauryl bis-(2-hydroxypropyl)alpha carboxyethyl betaine, coco dimethyl sulfopropyl betaine, stearyl dimethyl sulfopropyl betaine, stearyl betaine, lauryl dimethyl sulfoethyl betaine, lauryl bis-(2-hydroxyethyl) sulfopropyl betaine, amidobetaines, amidosulfobetaines, oleyl betaine and co
  • anionic surfactants also are disclosed in McCutcheon's, "Detergents and Emulsifiers", North American edition (1986 ) and McCutcheon's, "Functional Materials", North American edition (1992 ).
  • Examples include the alkoyl isothionates, the alkyl and alkyl ether sulfates, such as, ammonium cocoyl isothionate, sodium cocoyl isothionate, sodium lauroyl isothionate, sodium stearoyl isothionate and mixtures thereof, the sarcosinates, such as sodium lauroyl sarcosinate, sodium cocoyl sarcosinate and ammonium lauroyl sarcosinate, sodium lauryl sulfate, ammonium lauryl sulfate, ammonium cetyl sulfate, sodium cetyl sulfate, sodium stearyl sulfate, ammonium cocoyl is
  • emulsifiers includes tricetareth-4-phosphate, sodium laureth-4-phosphate or oleth-3.
  • non-ionic emulsifiers include sorbitan monostearate, glyceryl monostearate, polysorbates, polyethylene derivatives of fatty alcohols, polyoxyethylene ethers of fatty alcohols, such as polyoxyethylene cetyl ether, polyoxyethylene oleyl ether, polyoxyethylene nonylphenyl ether and the like, sorbitan stearate, glyceryl stearate, C 12 -C 18 fatty alcohols, esters and ethers thereof, aliphatic fatty alcohols such as cetyl alcohol or stearyl alcohol or a mixture of the two, fatty alcohols or ⁇ -diols oxyethylenated or polyglycerolated such as oleyl alcohol polyoxyethylenated with 10 moles of ethylene oxide, 1,2-octadecanediol polyglycerolated with 2 or 7 moles of glycidol, cyclic fatty alcohols, glycol
  • cationic emulsifiers include quaternized ammonium bromide and chloride salts, cetyltrimethylammonium chloride, benzalkonium chloride and cetyl pyridinium chloride, aliphatic amines having fatty chains, e.g., oleylamine and dihydroabietylamine; quaternary ammonium compounds, e.g., lauryl dimethylbenzyl ammonium chloride, amides derived from amino alcohols, e.g., N-aminoethyl oleylamide, n-(stearoyl-colamino-formylmethyl) pyridinium chloride, N-soya-N-ethyl morpholinium ethosulphate, alkyl dimethyl benzyl ammonium chloride, di-isobutylphenoxyethoxyethyl dimethyl benzyl ammonium chloride, cetyl pyridinium chloride, N-
  • compositions of the instant invention can comprise a wide range of additional components.
  • CTFA Cosmetic Ingredient Handbook Second edition, 1992 , which is incorporated by reference herein in its entirety, describes a wide variety of cosmetic and pharmaceutical ingredients commonly used in the skin care industry, which are suitable for use in the compositions of the instant invention.
  • Examples of functional classes of ingredients are absorbents, abrasives, anti-acne agents, anticaking agents, antifoaming agents, antimicrobial agents, antioxidants, binders, biological additives, buffering agents, bulking agents, chelating agents, chemical additives, colorants, cosmetic astringents, cosmetic biocides, denaturants, drug astringents, external analgesics, film formers, fragrance components, humectants, opacifying agents, pH adjusters, platicizers, preservatives, propellants, reducing agents, skin bleaching agents, skin conditioning agents (emollients and humectants), skin protectants, solvents, foam boosters, hydrotropes, solubilizing agents, suspending agents (nonsurfactant), sunscreen agents, ultraviolet light absorbers and viscosity increasing agents (aqueous and nonaqueous).
  • a number of pharmaceutically active agents can be used in the dermatologic preparations of interest.
  • any of the known antibiotics, anti-acne agents, antineoplastic agents, bleaching agents, keratolytic agents, anti-inflammatories, antifungal analgesics and so on, can be used.
  • cytostatic agents include cytostatic agents, alkylating agents, enzyme inhibitors, proliferation inhibitors, DNA synthesis inhibitors, lytic agents, DNA intercalators, antimetabolites and the like.
  • Illustrative agents include steroids, paclitaxel, ionomycin, etoposide, nitrosoureas such as carmustine (BCNU), doxorubicin, daunoxubicin, actinomycin D, meclorethamine, busulfan, CCNU, Me-CCNU, chlorambucil, cactinomycin, carzinophilin, chlornaphazine, 6-chloropurine, azathioprine, fluorouracil, hydroxyurea, thioquanine, campothecin, mitomycin, lomustine (CCNU), semustine (Me-CCNU), cantharidin, camptothecin, carboplatin, ricin, pseudomonas exotoxin, interferons, inter
  • Other compounds that can be used include cyctophamide, cyclosporin, amsacrine, biantrene hydrochloride, camostat mesylate, campothecin, enocitabine, etoposide, epirubicin hydrochloride, fludarabine phosophate, flutamide, fotemustine, idarubicin hydrochloride, ionomycin, onidamine, mitoxantrone hydrochloride, nilutamide, paclitaxel, pirarubicin, toremifene, vinorelbine, didemnin, bactracyclin, mitoquidone, penclomedine, phenazinomycin, U-73975, saintopin, 9-aminocamptothecin, amonafide, merbarone and the like.
  • Additional agents include mitomycin C, cisplatin, mechlorethamine, daunorubicin, carmustine, pyrazine diazohydroxide, fumagillin analog FF- 11 1142, rhyzoxin, dynemicin A, chlorambucil, semustine and the like.
  • Suitable keratolytics include salicylic acid, derivatives of salicylic acid such as 5-octanoyl salicylic acid, and resorcinol; retinoids such as retinoic acid and derivatives thereof (e.g., cis and trans); sulfur-containing D and L amino acids and derivatives and salts thereof, particularly N-acetyl derivatives, such as N-acetyl-L-cysteine; lipoic acid; antibiotics and antimicrobials such as benzoyl peroxide, actopirox, tetracycline, trichlorobanilide, azelaic acid, phenoxyethanol, phenoxypropanol, phenoxyisopropanol, ethyl acetate, clindamycin and meclocycline; sebostats such as flavonoids; and bile salts such as scymnol sulfate and derivatives thereof, deoxycholate and cholate.
  • antiwrinkle and anti-skin atrophy actives examples include retinoic acid and derivatives; retinol; retinyl esters; salicylic acid and derivatives thereof; sulfur-containing D and I, amino acids and their derivatives and salts, particularly the N-acetyl derivatives, thiols, e.g. ethane thiol; alpha-hydroxy acids, e.g. glycolic acid, and lactic acid; phytic acid, lipoic acid; lysophosphatidic acid, and skin peel agents, e.g., phenol.
  • retinoic acid and derivatives examples include retinol; retinyl esters; salicylic acid and derivatives thereof; sulfur-containing D and I, amino acids and their derivatives and salts, particularly the N-acetyl derivatives, thiols, e.g. ethane thiol; alpha-hydroxy acids, e.g. glycolic acid, and lactic acid; phytic
  • non-steroidal anti-inflammatories examples include propionic acid derivatives; acetic acid derivatives; fenamic acid derivatives; biphenylcarboxylic acid derivatives; and oxicams, and include acetyl salicylic acid, ibuprofen, naproxen, benoxaprofen, fluhiprofen, fenoprofen, fenbufen, ketoprofen, indoprofen, pirprofen, carprofen, oxaprozin, pranoprofen, microprofen, tioxaprofen, suprofen, alminoprofen, tiaprofenic acid, fluprofen and bucloxis acid.
  • topical anesthetic drugs examples include benzocaine, lidocaine, bupivacaine, chlorprocaine, dibucaine, etidocaine, mepivacaine, tetracaine, dyclonine, hexylcaine, procaine, cocaine, ketamine, pramoxine, phenol, and pharmaceutically acceptable salts thereof.
  • Corticosteroids including halogenated corticosteroids that can be used in the topical preparations of interest generally are known and are commercially available. Examples include cortisone, hydrocortisone and derivatives thereof including cortodoxone, flucetonide, fludrocortisone acetate, flurandrenolone acetonide, medrysone; prednisone, prednisolone and derivatives thereof including amcinafal, amcinafide, betamethasone benzoate, valerate and dipropionate, chloroprednisone acetate, descinalone acetonide, desonide, dexamethasone, dichlorisone acetate, difluprednate, flucloronide, flumethasone, flunisolide acetate, fluocinolone acetonide, fluocinonide, fluocortolone, fluorometholone, fluperoline acetate, fluprednisolone valerate, mepre
  • Examples of other active ingredients that can be used in a topical preparation of interest include acebutolol, acetaminophen, acetohydoxamic acid, acetophenazine, acyclovir, allopurinol.
  • alprazolam aluminum hydroxide, amantadine, ambenonium, amiloride, aminobenzoate potassium, amobarbital, amoxicilin, amphetamine, ampicillin, androgens, anesthetics, anticoagulants, anticonvulsants, antithyroids, appetite suppressants, aspirin, atenolol, atropine, azatadine, bacampicillin, baclofen, beclornethasone, belladonna, bendroflumethiazide, benzoyl peroxide, benzthiazide, benztropine, bethanechol, biperiden, bisacodyl, bromocriptine, bromodiphenhydramine, brompheniramine, buclizine, bumetanide, busulfan, butabarbital, butaperazine, caffeine, calcium carbonate, captopril, arbamazepine, carbenicillin, carbidopa, levodopa, carbinoxamine inhibitors
  • the amounts of the inert ingredients and active agent(s) in the dermatologic preparation of interest generally are known in the art. It is within the ambit of the artisan to derive particular amounts of the ingredients to obtain a cream of interest.
  • the particular amount of any one ingredient used is not substantially critical and the amounts used are at the accuracy of the measuring or dispensing means known in the art.
  • approximately 344.8 kg of water, 15.0 kg magnesium aluminum silicate, and 0.2 kg butylated hydroxytoluene are first combined and mixed at 75-80°C to form the aqueous phase.
  • the mixing can be by side scrape agitation at a fixed speed.
  • the resulting aqueous phase is a suspension.
  • the mixing can be at medium speed in a Lightnin ® mixer.
  • the resulting non-aqueous phase is a suspension.
  • the second step can be performed before, after or concurrently with the first step.
  • the non-aqueous phase is added to the aqueous phase and the combined biphasic mixture is cooled to a temperature in the range of 68°C to 72°C, or about 70°C, after which about 17.5 kg of Arlacel ® 165, 0.25 kg tretinoin and 0.050 kg fluocinolone acetonide are added and stirred with cooling.
  • Arlacel ® 165, 0.25 kg tretinoin and 0.050 kg fluocinolone acetonide are added and stirred with cooling.
  • 0.25 kg citric acid is added with mixing and cooling.
  • the temperature reaches 55°C 20.0 kg hydroquinone is added with mixing and cooling.
  • the temperature reaches about 50°C the mixture is homogenized with a homogenizer, with continued cooling.
  • the mixture When the mixture reaches 45°C, 1.0 kg of sodium metabisulfite is added with stirring and cooling. Typically, the sodium metabisulfite is added about 30 minutes after the addition of the hydroquinone.
  • the mixing can be at fixed speed in a side scrape agitator.
  • the resulting composition of matter is an emulsion, i.e., a cream.
  • the presence of sodium metabisulfite in the cream prevents the oxidation of hydroquinone.
  • the addition of sodium metabisulfite as the cream is cooling advantageously results in a well-mixed composition of matter, with the sodium metabisulfite evenly mixed throughout the cream and preventing the oxidation of the hydroquinone throughout the cream.
  • Another advantage of the process of the invention is that by controlling the temperature at which the components, including hydroquinone, are added, the cream does not turn as brown, resulting in a more pleasing-colored product.
  • the addition of the emulsifier following the mixing of the non-aqueous and aqueous phases is advantageous for the making of the pharmaceutical composition of the invention.
  • a standard technique of adding the emulsifier to the non-aqueous phase and then mixing with the aqueous phase was used, no emulsion formed.
  • the emulsifier was added to the mixture of the non-aqueous and aqueous phases with cooling, according to the method of the invention, a useful emulsion did form.
  • the resulting TRI-LUMA ® Cream contains fluocinolone acetonide, hydroquinone and tretinoin in a hydrophilic cream base for topical application.
  • Each gram of TRI-LUMA ® Cream contains as active ingredients, fluocinolone acetonide 0.01% (0.1 mg), hydroquinone 4% (40 mg), and tretinoin 0.05% (0.5 mg), and as inactive ingredients, butylated hydroxytoluene, cetyl alcohol, citric acid, glycerin, glyceryl stearate, magnesium aluminum silicate, methyl gluceth-10, methylparaben, PEG-100 stearate, propylparaben, purified water, sodium metabisulfite, stearic acid, and stearyl alcohol, see TABLE 1.
  • Fluocinolone acetonide is a synthetic fluorinated corticosteroid for topical dermatological use and is classified therapeutically as an anti-inflammatory. It is a white crystalline powder that is odorless and stable in light.
  • the chemical name for fluocinolone acetonide is (6,11,16)-6,9-difluoro-11,21-dihydroxy-16,17-[(1-methylethylidene)bis(oxy)]-pregna-1,-4-diene-3,20-dione.
  • the molecular formula is C 24 H 30 F 2 O 6 and molecular weight is 452.50.
  • Hydroquinone is classified therapeutically as a depigmenting agent. It is prepared from the reduction of p -benzoquinone with sodium bisulfite. It occurs as fine white needles that darken on exposure to air.
  • the chemical name for hydroquinone is 1,4-benzenediol.
  • the molecular formula is C 6 H 6 O 2 and molecular weight is 110.11.
  • Tretinoin is all- trans -retinoic acid formed from the oxidation of the aldehyde group of retinene to a carboxyl group. It is highly reactive to light and moisture. Tretinoin is classified therapeutically as a keratolytic.
  • the chemical name for tretinoin is:
  • TRI-LUMATM Cream is typically supplied in 30 g aluminum tubes, NDC 0299-5950-30, and is stored at controlled room temperature 68 to 77°F (20-25°C).
  • tretinoin quantifiable plasma concentrations were obtained in 57.78% (26 out of 45) of Group I and 57.14% (8 out of 14) of Group II subjects.
  • the exposure to tretinoin as reflected by the C max values ranged from 2.01 to 5.34 ng/mL (Group I) and 2.0 to 4.99 ng/mL (Group II).
  • TRI-LUMA ® Cream resulted in a minimal increase of normal endogenous levels of tretinoin.
  • the circulating tretinoin levels represent only a portion of total tretinoin-associated retinoids, which would include metabolites of tretinoin and that sequestered into peripheral tissues.
  • Groups I and II subjects had undetectably low post-dose plasma concentrations.
  • the following tests may be helpful in evaluating patients: (a) ACTH or cosyntropin stimulation tests; (b) the A.M. plasma cortisol test; and (c) the urinary free cortisol test.
  • TRI-LUMA ® Cream was compared with three possible combinations of two of the three active ingredients [(1) hydroquinone 4% (HQ) + tretinoin 0.05% (RA); (2) fluocinolone acetonide 0.01% (FA) + tretinoin 0.05% (RA); (3) fluocinolone acetonide 0.01% (FA) + hydroquinone 4% (HQ)], contained in the same vehicle as TRI-LUMA ® Cream.
  • the patients were instructed to apply their study medication each night, after washing their face with a mild soapless cleanser, for 8 weeks.
  • the patients were also instructed to apply a thin layer of study medication to the hyperpigmented lesion, making sure to cover the entire lesion including the outside borders extending to the normal pigmented skin.
  • the patients were provided a mild moisturizer for use as needed and a sunscreen with SPF 30 for daily use.
  • the patients were instructed to avoid sunlight exposure to the face, wear protective clothing Protective clothing and avoidance of sunlight exposure to the face was recommended.
  • the patients were evaluated for melasma severity at baseline and at weeks 1, 2, 4, and 8 of treatment.
  • Primary efficacy was based on the proportion of patients who had an investigators' assessment of treatment success, defined as the clearing of melasma at the end of the eight-week treatment period.
  • the majority of patients enrolled in the two studies were white (approximately 66%) and female (approximately 98%).
  • TRI-LUMA ® Cream was demonstrated to be significantly more effective than any of the other combinations of the active ingredients.
  • Assessment scale Cleared (melasma lesions approximately equivalent to surrounding normal skin or with minimal residual hyperpigmentation); Mild (slightly darker than the surrounding normal skin); Moderate (moderately darker than the surrounding normal skin); Severe (markedly darker than the surrounding normal skin).

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US11491225B2 (en) 2014-12-23 2022-11-08 Dyve Biosciences, Inc. Transdermal carrier
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US11730756B2 (en) 2017-09-15 2023-08-22 Dyve Biosciences, Inc. Method of administration and treatment
US11744853B2 (en) 2017-09-15 2023-09-05 Dyve Biosciences, Inc. Method of administration and treatment
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